Packet Tracer file (PT Version 7.1) : https://goo.gl/H5fyFP Get the Packet Tracer course for only $10 by clicking here: https://goo.gl/vikgKN Get my ICND1 and ICND2 courses for $10 here: https://goo.gl/XR1xm9 (you will get ICND2 as a free bonus when you buy the ICND1 course). #CCNA #PacketTracer #CCENT For lots more content, visit http://www.davidbombal.com - learn about GNS3, CCNA, Packet Tracer, Python, Ansible and much, much more. You need to know about the life of a packet for the CCNA exam. Do you know how MAC addresses are used? When they are used? How they change? Get ready for the CCNA exam. Transcription: This is one of multiple CCNA exam simulation quiz questions. Can you answer the questions yourself? In these quiz questions I’m using Cisco packet tracer to help you practically test and verify your knowledge of Cisco CCNA topics. In these quiz questions; we are testing your knowledge of the life of a packet. Do you understand destination and source of MAC addresses? Do you understand where those are used? Do you understand how traffic flows through a network and the various encapsulations used in a network? In this scenario I have two PCs, PC 1 on the left and PC 2 on the right. They are connected to 3650 switches. These switches are configured as Layer 2 switches. There are also 2 Cisco ISR routers connected via a serial link. The scenario is: PC 1 pings PC2. You need to answer the following questions based on the echo request message sent from PC1 to PC2. So, look at the echo request message, not other traffic types and answer these questions. What is the destination MAC address of the frame at point A in the network? In other words, what is the destination MAC address of the echo request message at this point? What is the actual destination MAC address? So in other words, you need to determine what the actual MAC address is by looking at the frame and determining to which device that MAC address belongs. Now to help you with this task, in packet tracer, use the simulation mode. Simulation mode in packet tracer allows you to simulate the flow of traffic through a network and view what happens. Once you open up simulation mode on PC 1, generate traffic. So send the ping to the IP address of PC 2 which is 10.1.3.2 and have a look at how the traffic flows. As we can see here an ARP packet has been created and the PC is ARPing for the MAC address of the router. If you don’t want to see other traffic types, you can edit your filters to only look at ARP and ICMP traffic within packet tracer. So what I’ll do is reset that simulation and send the packet again. So we can see the ARP request to the router and the reply and then we can see the ICMP message and if you click on the message, you’ll able ... https://www.youtube.com/watch?v=Fk0udX-FqyU

Setting up your Windows workstation as a development environment: Install bash, git, Python, atom, Postman, Docker and more! So you are a follower of Gates, Balmer and Nadella, excellent! Let's supercharge that Windows workstation with everything you need to be a programability ninja! Objectives: - Install a basic development toolset on your local workstation -Verify the tools are all working as expected Prerequisites: In this lab you'll find walkthroughs on how to install a set of common development tools on a Windows 10 workstation. If you haven't reviewed the lab "What is a Development Environment, and why do you need one?" yet, you may want to go back and take a look. In it, you will learn the reasons behind the types of tools and choices made for this lab. DevNet Homepage http://bit.ly/2MHbgOk Learning Lab - Dev Setup http://bit.ly/2NkwCGt NetDevOps Live! DevNet Show http://bit.ly/2NKmXZ8 Network Programmability Basics Video Series http://bit.ly/2MHbLba ... https://www.youtube.com/watch?v=drUWlIz04zo

This is one of multiple videos discussing topics such as SDN, REST APIs, SDx, Overlays, Network Programmability, Network Automation and lots more. In this video, we discuss whitebox switching, network disaggregation, Linux and more. My full CCNA course is here: http://www.ccnax.com Get $200 worth of network software for free here: https://goo.gl/613TUF Subscribe to learn how to pass the CCNA 200-125 exam. Also includes content for the ICND1 100-105 and ICND2 200-105 exams. What do you want to learn? Let me know via the comments. ... https://www.youtube.com/watch?v=8Kf45Z9pQ94

Does the iPhone 11 perform better than an iPhone 10 XS Max and iPhone X when using WiFi 6? What about a PC upgraded to use WiFi 6? Is it worth it upgrading your network to WiFi 6 (802.11ax)? In this video I show you the performance of multiple devices - iPhone 11, iPhone XS Max, iPhone X, iPhone 7 and PC - when using a Netgear Nighthawk AX6000 RAX80 Router. Is wifi 6 better? I think so based on my tests. I am getting over 800 Mbps on a iPhone and over 900 Mbps with a PC. I think that is good performance! However, this is in a test environment - your results may vary depending on where you position the WiFi access point or router and what interference you encounter (thick walls, metal etc). You also need devices that support 802.11ax such as a Galaxy S10 or iPhone 11. Without Wi-fi 6 or 802.11ax support, you may not see much difference in your tests. ======================== Menu: ======================== Overview 0:00 Spoiler results: 2:41 Is is worth buying a wifi 6 router? 3:52 Technical content start: 4:40 Unboxing: 4:57 iPhone 11, XS Max, X, 7 Wifi 6 testing: 9:10 PC WiFi 6 network card testing: 12:58 ======================== Devices used: ======================== Netgear Router: https://amzn.to/2RzHwIB WiFi card: https://amzn.to/3aLpX01 Please note that links listed may be affiliate links and provide me with a small percentage/kickback should you use them to purchase any of the items listed or recommended. Thank you for supporting me and this channel! #wifi #iphone #wifi6 ... https://www.youtube.com/watch?v=unc36O66Ef0